Internal-combustion-engine-testing device.



I .R. a. EDGERTON, INTERNAL COMBUSTION ENGINE TESTING DEV-ICE;

APPLICA'HON FILED MAR. 311N317- -1 ,2573468. I Patented Feb; 26, 1918.

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UNITED STATES PATENT OFFICE.

INTERNAL-COMBUS'IION-ENGINE-TESTING DEVICE.

Application filed March 31, 1917.

To all whom it may concern:

Be it known that I. ROY G. Eoonmron, a citizen of the United States, and a resident of Sufiolk in the county of Nonsemond and State of Virginia, have invented. new and and useful Improvements in Internal-Combustion-EngineTcsting Devices, oil which the following a specification.

This invention relates to improvements in internal combustion engine testing devices.

The primary object of this invention is to provide a. testing device Eor'tho cylinders of internal combustion en ines which will enable an operator to '-e o n which of the cylinders are Working satisfactorily.

A further object; of this invention is to provide a device of the above mentioned.

character which is adopted to test one or more of the cylinders of an internal combustion on ine at the some time.

A "sti 1 further object is to provide a test- 1 ing device for internal combustion engines Which may be readily applied to or removed from the, cylinders of the interim}. combos tion engine and Wl'llC-ll 1s strong and durable and: easy and mexpensiveto manufacture.

'':.Other objects and advantages of this involition will be apparent from the following 7 description taken in CODTLIHCUOZ'I. with the accompany ng drawings and the particular features of novelty will he pointed out in the appended claims.

In the dritvvings in whirl" iin' ar Cl111710- ters of reference refer to ni. parts in the several views,

Figure-1 denotes a top view of the internal combustion engine showing my testing device applied for testing the cylinders of some,

Fi 2 is an enlarged view of the member to w ich the conductors are connected,

,Fi 3 iso cross sectional view of the mem er to-Which the conductors are connested, showing theconductors in position therein,

Fig. 4 is a cross sectional View of the end of the member to which the conductors are connected,

Fig. 5 is a view of a. portion of the conductors,

Fig. 6 device,

Fig. ,7 is a cross sectional view of one of is a side view of aportion of the the ends of the conductors showing a clip associated therewith,

Fig. 8 1s a View of a portion of the mem- Specification of Letters Patent.

Patented Feb. 26, 1918.

Serial No. 158,988.

conductors are conor formed of fibrous. or other non-conducting material. The numeral 2 denotes electric comluetors. As shown clearly in Fig.5, the insulation on the conductors- 2 is stripped for a short distance as at 3 and these stripped portions of the conductors are then soldered or otherwise suitably ailixed to a. plate 4, which may be of brass, copper or like metal. The plate 4 is of such a size that it will fit within the U-sheped member 1, the conductors then being in theposition shown clearly in Fig. 2.

A second substantially U-shaped member 5 is provided which is preferably formed of metal and is slightly larger .in-proportion than the U-shaped member 1. slle-l sides of. member 5 .are eachprovided With an opening 6. U-shapedmember 5 is positioned upon member '1 in th'ef position shown clearly in Fig. 2 vviththeparalof member 1. A bolt 7 is then inserted in the opening 6 in member 5 and will lie between the conductors 2 and serve to-hold the several parts of the device in position.

The p ar- "lel sides of member 5 adj acent the'op'en ends The numeral 2 in Fig. 7 denotes the end of the conductor shown in 1 and'2-with the insulation at the end thereof stripped for a. short distance as show'njat '8. Thestripped portion 8 is formed into a loop-'9.

The numeral 1% denotes? spring wire clip "which is fin'eferebly mafg of one piece of wire and asone end formed into a; springmember 11 which is adapted to be inserted within the loop -9 and engage against the inner portion of the open ended cylindrical sleeve 12. This sleeve 12- is preferably formed of fibrous or other like non-conducting material and .is ofsuch size a to allow the conductor 2 to tightly fit therein. The

clip 10 is provided with at substantially arcu 5 ate shape portion; 13; the purpose of which will be hereinafter described.

The other on of clip 10 is bent'over upon itself in such manner as to iormmn eye j 14 and arcuatcshipe portion 11; adjacent the portion 15 is then wardly as shown us 1.6.

The end bentout- This invention, as above stated, isadaptcd to test the cylinders of an internal combus- ,Ttion engine. The numeral 17 denotes an vengine of the above mentioned character 5 whlchisprovided With a head 18 WhlCh is secured by means of bolts 19. Mounted on the head are the customary spark plugs 20.

' In use one of the conductors 2 engaged by means of the clip 10 and eye 14 with one 10 of the bolts 19 or with any other suitable v--n :uital.part of the engine. The reman'nng "conductors are then engaged by other respective spring clips with the spark plugs o ftthe cy inders which are tobe rendered 15 inoperative. It can be readily seen that beause of, thepeculiar construction of t .e {clip 10-th-at it may be easily engaged wit .thesp'ark plug, the arcuate' shaped portion .13 and the bent. out portion 16 permitting 20,,the-easy, application of the clip 10 with the spark plug which will, it is obvious, be en- }ga I in the clip at 15.

hen the conductors are connected, as a e stated, the current to the spark plugs l5 ii hioh:are engaged with the clips will be short-circuited to the bolt 19 or other metal part tojwhich ,one of the conductors are con- ;ne'ctedfi This will of course render the cylin- -,.j'der Which-are-in this circuit inoperative. 80 'ylinders-not in this circuit will opera re nhdtheir condition can hence it. is also obvious that this I H .u'sed for the purpose of carbon 'Irom*=the cylinders while "flown-1 one.. more"; of the cylinders to perate in the'nlanner shown, for a short 11 hot time. reduction ,to practice, I have found .i hatthe form o'f my invention illustrated 4.0. inlthe' drawings and referred to in the above 4 Ideseriptio is the preferred embodiment is them s :hicient and practical, yetrealiztthe conditions concurrent with the adoption of my device will necessarily vary, I desire to emphasize the fact that various minor changes in details of construction, proportion and arrangement of parts may be resorted to, when required, without sacrificing an of the advantages of my inventionas de ned in the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A testing device for lntfil'uwi combustion engines comprising a plurality of con-- ductors, provided with a stripped portion, the said conductors being secured at their strilpped portion to a plate; a substantially U-s laped fibrous member adapted to receive the conductors, a second U-shaped metal member engaging the first named U-shaped member at the open ends thereof, means associated with the second named U-shaped member for securin the conductors in the first named U-shape member, fibrous sleeves each adapted to engage one end of a conductor, a clip secured to one end of each conductor and springilyheld within one of said sleeves.

2. A testing device for internal'combustion engines comprising a plurality of conductors provided with a stripped portion, the said conductors being secured at their stripped portion to a plate, a substantially U-shaped fibrous member ada ted to receive the plate, a second substantlally U-sha Jed metal member adapted to engage the rst named U-shaped member at the open ends thereof, a bolt secured to the second named. Ushaped member and adapted to pass between the conductors, a spring wire clip remo'vably secured to the end of'each conductor, and a fibrous sleeve removably secured to the end of each conductor and adapted to engage one end of a spring wire clip.

ROY GARLAND EDGERTON. 

